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DLP-7970ABP

P1-P3P4-P6P7-P7
Rev 1.1 (September 2013) 1 © 2013 DLP Design, Inc.
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FEATURES:
• 13.56MHz HF RFID Reader/Writer
• Compatible with the NFCLink Library
• Compatible with the MSP-EXP430G2X LaunchPad
• Compatible with the MSP-EXP430F5529LP LaunchPad
• Compatible with the C2000 LaunchPad
• Compatible with the TIVA C Series LaunchPad
• Compatible with the Hercules LaunchPad
• Supports ISO 15693, 18000-3, 14443A/B and FeliCa
• RFID/NFC Reader, NFC Peer or Card-Emulation Mode
• NFCIP-1 (ISO/IEC 18092) and NFCIP-2 (ISO/IEC 21481)
• On-Board Antenna
• FCC/IC Approvals in Place
• Operational Power Supplied by the LaunchPad
1.0 INTRODUCTION
The DLP-7970ABP is an add-on board designed to fit TI’s MCU LaunchPads that incorporates
DLP Design’s DLP-RFID2 RFID module. This BoosterPack allows the software application developer to
get familiar with the functionalities of the TRF7970A multi-protocol, fully-integrated, 13.56MHz RFID/NFC
IC on their Texas Instruments embedded microcontroller platform of choice without having to worry about
developing the RF section.
The NFCLink library is an industry-proven modular firmware/software solution that provides a
programming interface for TI’s family of TRF79XX NFC devices supporting the hardware level up through
the host operating system via an API. NFCLink is a library of NFC and HF RFID firmware using the NCI
protocol to communicate with a host OS or MPU. NFCLink currently supports MSP430 5XX and 6XX
series devices. Visit the TI website for more details: www.ti.com/tool/nfclink
This document provides direction for TRF79XX users implementing a 13.56MHz RFID reader solution
using the TRF79XX IC connected to a Texas Instruments embedded microcontroller or microprocessor
development platform. Examples of such development platforms are the MSP-EXP430G2 LaunchPad
and the MSP-EXP430F5529LP LaunchPad.
LaunchPads from Texas Instruments are easy-to-use flash programming and debugging tools for the
MSP430, C2000, TIVA, etc. line of microcontrollers. They feature everything you need to start
developing on a Texas Instruments microcontroller device. They have on-board emulation for
programming and debugging, on-board button switches and LED’s and BoosterPack-compatible pinouts
to support a wide range of plug-in modules like the DLP-7970ABP.
Rev 1.1 (September 2013) 2 © 2013 DLP Design, Inc.
Free software development tools are also available, such as TI’s Eclipse-based Code Composer Studio.
Open-source development is also available thanks to community-driven projects such as the MSPGCC
compiler or Energia, a branch of the popular Wiring framework.
2.0 SCOPE
This document describes the DLP-7970ABP module for evaluation and development purposes in
conjunction with Texas Instruments embedded development platforms. This manual does not cover the
in-depth details of the TRF79XX reader IC family as those details are documented in the datasheets for
those parts along with application notes that can be found on the product pages (see the hyperlinks in
Section 3).
3.0 REFERENCES
• DLP-RFID2: www.dlpdesign.com
• TRF7970A product page: http://www.ti.com/product/trf7970a
• TRF7970A datasheet: http://www.ti.com/lit/ds/slos743g/slos743g.pdf
4.0 MODULE DESCRIPTION
The DLP-7970ABP BoosterPack (see Figure 1) allows the software application developer to become
familiar with the functionalities of TRF7970A multi-standard, fully integrated, 13.56MHz RFID reader IC
with the freedom to develop on the Texas Instruments embedded microcontroller development platform
of choice.
The DLP-7970ABP module also allows customer-driven antenna tuning with an onboard coil antenna.
The module is hardwired for SPI communication with the associated LaunchPad; and it supports slave
select, TRF7970A Direct Mode 2 (default), Direct Mode 1 and Direct Mode 0 operations. The user also
has access to and full control over the TRF7970A EN line, allowing for design and development of ultra
low-power/high-frequency (HF) RFID systems.
The DLP Design module has been modified from its original form by removing the onboard
microcontroller (MSP430F2370) so that the RF circuitry on the module can be controlled by the
microcontroller on the connected LaunchPad. Additionally, the I/O pins required by the TRF7970A’s SPI
interface have been brought out of the DLP-RFID2 module for connection to the microcontroller on the
LaunchPad.
An impedance-matching circuit from 4Ω to 50Ω is designed into the DLP-RFID2 module, and is
connected to a tuned 50Ω antenna system that consists of an onboard five-turn coil with series and
parallel passive elements (capacitors and a resistor).
Connection to Texas Instruments LaunchPad platforms are made via 10-pin, 0.1-inch spaced,
0.025-square inch post female headers located on the back of the board.
Rev 1.1 (September 2013) 3 © 2013 DLP Design, Inc.
Figure 1. DLP-7970ABP Evaluation Module
5.0 MODULE PINOUT
DLP-7970ABP MODULE PIN CONNECTIONS TO THE LAUNCHPAD
1
VCC - 3.0V power from the LaunchPad
2
P1.0 - Unused by the DLP-7970ABP
3
UART RXD - Unused by the DLP-7970ABP
4
UART TXD - Unused by the DLP-7970ABP
5
P1.3 - Unused by the DLP-7970ABP
6
P1.4 - Unused by the DLP-7970ABP
7
DATA_CLK - Clock for the SPI interface
8
IRQ - Interrupt request from the TRF7970A to the microcontroller on the
LaunchPad
9
Slave Select - Used by the SPI interface
10
EN - Used to enable the TRF7970A
11
P2.3 - I/O used to light an LED on the DLP-7970ABP when an ISO14443B tag is
present in the RFID field
12
P2.4 - I/O used to light an LED on the DLP-7970ABP when an ISO14443A tag is
present in the RFID field
13
P2.5 - I/O used to light an LED on the DLP-7970ABP when an ISO15693 tag is
present in the RFID field
14
MISO - SPI serial data from the TRF7970A to the microcontroller on the
LaunchPad
15
MOSI - SPI serial data to the TRF7970A from the microcontroller on the
LaunchPad
16
RESET
17
TEST - Unused by the DLP-7970ABP
18
XOUT - Alternate interrupt source from the LaunchPad (see Section 6.0)
19
XIN - Unused by the DLP-7970ABP
20
GROUND
P1-P3P4-P6P7-P7

DLP-7970ABP

Mfr. #:
Buy DLP-7970ABP
Manufacturer:
Texas Instruments
Description:
RFID Transponder Tools TRF7970A NFC Booster Pack
Lifecycle:
New from this manufacturer.
Delivery:
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